It is good to know that the surgery is that easy. But how long after were you able to play successfully for a 3 hour gig?
permit me to bloviate for a minute to give you some context:
<bloviate mode start>
{
i started gigging in bars in the mid-70's and the rule back then was pack yer gear in, do 4 - 45 minute sets 9 - 01:30 pack yer ger out by 02:30 2 or 3 nights a week plus rehersal once a week not to mention wookshedding. for decades that's how i guaged my performing level and my playing stamina. i retired from performing 4 years ago, up until that point i was still doing 2 3-hour gigs a week plus woodshedding in between.
when i had my first surgery, i was able to hold onto a pick well enough to keep my left hand limber, probably a hour a day. i used to be better playing with a pick, but that's when i was a youngster. it was kinda frustrating, but i did learn that my fretless sounds very retro when played with a pick, so it wasn't time wasted by any means. after i had my stitches out (i think it was 2 weeks) i was back at my normal level. before my finger started acting up about a month ago, i was practicing at a pretty intense level for about 2 hours a day. i was still working full time and driving the delivery truck at the time IIRC. bear in mind that now i'm getting a leg up on 67 and so i'm not the young stud that i used to be. i'm not sure that i could do a 3-hour show anymore, trigger finger notwithstanding. but i'm pretty sure given the chance i'd probably kill myself trying. happily, i might add.
so this comes with a huge
YMMV. when ya go this route, ya probably oughta make sure yer calendar's clear for 2 weeks + some margin. i tolerated it pretty well, you may not.
the other thing that makes this a relatively easy procedure is that they're removing nodules on the tendons. most of the recovery is waiting for the incisions to heal.
} <end bloviate mode>
good luck with your treatment, sir. i'll post an update on this here and agin, maybe. probably. i dunno
<edit> i just re-read my own crap and noticed it's fulla typos. this finger is really starting to affect my keyboarding. couldn't have been that 37% THC (fully legal, i might add) post-breakfast-pick-me-up. that's just crazy talk!